#!/usr/bin/python3
# Filename: fibo.py


def fib(n):
    "定义到n的斐波那契数列"
    a, b = 0, 1
    while b < n:
        print(b, end=',')
        a, b = b, a + b
    print()


def fib2(n):
    "返回到n的斐波那契数列"
    result = []
    a, b = 0, 1
    while b < n:
        result.append(b)
        a, b = b, a + b
    return result
